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Chemical Constituents in Hybrids of Ligularia tongolensis and L. cymbulifera : Chemical Introgression in L. tongolensis
Author(s) -
Shimizu Anna,
Hanai Ryo,
Okamoto Yasuko,
Tori Motoo,
Yu JiaoJun,
Gong Xun,
Kuroda Chiaki
Publication year - 2016
Publication title -
chemistry and biodiversity
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.427
H-Index - 70
eISSN - 1612-1880
pISSN - 1612-1872
DOI - 10.1002/cbdv.201500227
Subject(s) - introgression , hybrid , botany , chemistry , chemical constituents , chemical composition , biology , gene , biochemistry , chromatography , organic chemistry
Two samples with morphologies intermediate between Ligularia tongolensis and L. cymbulifera were collected in Desha, Sichuan Province, and one, in Pachahai, Yunnan Province, P. R. China. The DNA sequencing confirmed that the samples were hybrids of the two species. Tetradymol ( 1 ), the major compound of L. cymbulifera not found in L. tongolensis , was isolated from the hybrid samples collected at both locations, while furanoeremophilan‐15‐oic acid derivative 4 , a compound characteristic to L. tongolensis , was found in the Pachahai hybrid but not in the Desha hybrids. Thus, the chemical consequence of hybridization can be variable. In addition, analysis of L. tongolensis samples at Pachahai indicated that introgression has been a mechanism of generating chemical diversity in the plant. Eleven compounds including three new ones were isolated.